JP2018110853A - Absorbent articles - Google Patents

Abstract

To improve the comfort of a wearer wearing an absorbent article. An absorbent article includes a mat-like absorbent body having water absorption. The absorbent body 10 has a groove-like squeezed portion 40 that is squeezed so as to cross both the longitudinal direction and the width direction in a plan view, and a fit for a wearer that extends across the squeezed portion 40 in a plan view. One or a plurality of followers 50 are provided. [Selection] Figure 1

Description

  The present case relates to absorbent articles such as disposable diapers and sanitary napkins.

  DESCRIPTION OF RELATED ART Conventionally, the absorbent article provided with the absorber extended in the longitudinal direction which connects a wearer's abdomen side and back part side at the time of mounting | wearing is known. In this absorbent article, moisture such as urine and menstrual blood excreted from the wearer is absorbed by the absorber. In recent absorptive articles, in order to improve the fit to a wearer, it has also been proposed to provide the absorbent body with lattice-shaped grooves that intersect both the longitudinal direction and the width direction (see Patent Document 1).

JP 2014-198113

  However, the absorbent article provided with the groove as described above in the absorbent body is easy to bend in the direction in which the groove is a crease, but is difficult to bend in other directions, resulting in a decrease in fit to the wearer. There is a fear. Therefore, there is room for improvement in enhancing the wearer's comfort.

  This case has been devised in view of the problems as described above, and one of the purposes is to improve the comfort of the wearer wearing the absorbent article. It should be noted that the present invention is not limited to the purpose here, and is an operation and effect derived from each configuration shown in the `` Mode for Carrying Out the Invention '' to be described later, and can also exhibit an operation and an effect that cannot be obtained by conventional techniques. It can be positioned as another purpose of this case.

  The absorbent article disclosed herein includes a mat-like absorbent body having water absorption. The absorbent body has a groove-like compressed portion that is compressed so as to cross both the longitudinal direction and the width direction in a plan view, and a fit for a wearer that extends across the compressed portion in a plan view. One or a plurality of followers are provided.

  According to this case, the comfort of the wearer wearing the absorbent article can be improved.

It is an expanded view of the paper diaper (absorbent article) regarding 1st embodiment. It is AA arrow sectional drawing of FIG. In FIG. 2, the thickness of each sheet is exaggerated for easy understanding of each configuration. It is a top view which shows the absorber of the paper diaper regarding 1st embodiment. It is a top view which shows the absorber of the paper diaper regarding 2nd embodiment. It is a top view which shows the principal part of the absorber of the paper diaper regarding 3rd embodiment. It is a principal part expanded sectional view which shows typically the top sheet (sheet | seat) of the paper diaper regarding 3rd embodiment.

  Hereinafter, the form for implementing this case is demonstrated. The following embodiment is merely an example, and there is no intention of excluding various modifications and technical applications that are not explicitly described in this embodiment. Each configuration of the present embodiment can be implemented with various modifications without departing from the spirit thereof. Further, it can be selected as necessary, and can be appropriately combined.

  The absorbent article described in the embodiment is a sanitary article that is attached to a wearer and absorbs and retains liquid moisture such as urine and menstrual blood excreted from the wearer. In addition to absorbent articles such as tape-type and pants-type disposable diapers (so-called “disposable diapers”), the absorbent article includes absorbent bodies such as urine pads, sanitary napkins, and panty liners. Also includes sex goods. In the following embodiment, a pants-type paper diaper is illustrated as an absorbent article.

  In this embodiment, about a paper diaper, let the direction which connects the front body arrange | positioned facing a wearer's abdomen and the back body arrange | positioned facing a back part be a longitudinal direction. Between these front body and back body (the center in the longitudinal direction), a crotch part disposed at the wearer's crotch (arranged facing the crotch) is located. Further, in a state where the paper diaper is worn by the wearer (hereinafter abbreviated as “wearing state”), the side facing the wearer's skin (inner side) is defined as the skin surface side, and the opposite side (outer side) of the skin surface is defined as non- The skin side. Furthermore, a direction connecting the skin surface side and the non-skin surface side is a thickness direction, and a direction orthogonal to both the longitudinal direction and the thickness direction is a width direction. In addition, viewing from the thickness direction is a plan view.

  About the direction of each structure in a paper diaper, when expressing along a longitudinal direction, for example, it shall include not only parallel to a longitudinal direction but substantially parallel to a longitudinal direction. Specifically, it is assumed that the inclination angle with respect to the longitudinal direction extends below 45 ° along the longitudinal direction. Similarly, in the case where it is expressed along each direction such as the width direction and the thickness direction, it means that the inclination angle with respect to each direction extends below 45 °.

[I. First embodiment]
[1. Constitution]
[1-1. Basic configuration]
First, the basic configuration of the disposable diaper 1 will be described with reference to FIGS. 1 and 2.
Here, the disposable diaper 1 is formed symmetrically with respect to the center line C in the width direction. This paper diaper 1 is roughly divided into three regions along the longitudinal direction: a front body 1A, a crotch 1B, and a back body 1C.

<Sheets>
First, the sheets of the disposable diaper 1 will be described.
As shown in FIG. 1, the disposable diaper 1 includes an absorbent body 10 (indicated by a thick broken line) that extends in the longitudinal direction over the front body 1A, the crotch 1B, and the back body 1C.
Here, the hourglass-shaped absorber 10 in which the crotch part 1B is smaller in the width direction dimension than the front body 1A and the back body 1C is illustrated. However, the shape of the absorbent body 10 in plan view is not limited to the hourglass shape as described above, but may be rectangular (that is, the dimension in the width direction is constant) in plan view, and each of the front body 1A and the back body 1C. A dumbbell shape that connects the circles may be used.

The absorbent body 10 is a mat-like (or pad-like) member having a water absorption property that absorbs and retains liquid moisture such as urine and menstrual blood excreted from the wearer (hereinafter referred to as “excreted moisture”).
In this absorbent body 10, a superabsorbent polymer (so-called “SAP <Superabsorbent polymer>”, “superabsorbent polymer”, or “superabsorbent polymer”) is applied to pulverized or defibrated pulp (so-called “fluff pulp”). The mat is mixed (wrapped) with a hydrophilic nonwoven fabric or tissue.

Various sheets 11, 12, 13, and 14 shown in FIG. 2 and described below are provided on the skin surface side and the non-skin surface side with respect to the absorbent body 10 described above.
A center sheet 11 is laminated on the skin surface side with respect to the absorbent body 10, and a back sheet 12 is laminated on the non-skin surface side. Side sheets 13 are arranged on the lateral sides of these sheets 11 and 12.

The side sheet 13 is laminated on the skin surface side in the width direction side portion of the center sheet 11, and is laminated on the non-skin surface side in the width direction side portion of the back sheet 12.
A cover sheet 14 is laminated on the non-skin surface side of the back sheet 12. Here, the cover sheet 14 is overlapped via the side sheet 13 on the side in the width direction of the back sheet 12.

Since the center sheet | seat 11 permeate | transmits excretion water | moisture content and makes the absorber 10 absorb, it has water permeability. Here, in order to suppress the stuffiness in the mounted state, the center sheet 11 having both air permeability is used. As such a center sheet 11, what is called an air through nonwoven fabric can be used.
Further, the center sheet 11 is arranged on the most skin side in the paper diaper 1 (hereinafter also referred to as “top sheet”). The center sheet 11 has a width dimension larger than that of the absorbent body 10, and covers the absorbent body 10 from the skin surface side.

  The back sheet 12 has water permeability in order to prevent liquid leakage from the absorber 10. Here, in order to suppress the stuffiness in the wearing state, the back sheet 12 having both moisture permeability is used. As such a back sheet 12, a moisture-permeable polyethylene (PE <Poly-Ethylene>) film can be used. However, a polypropylene (PP <Poly-Propylene>) film may be used for the back sheet 12.

The side sheet 13 has water permeability in order to prevent liquid leakage to the side in the width direction. As the side sheet 13, a spunbond nonwoven fabric can be used.
Further, a part of the side sheet 13 is disposed on the most skin side in the paper diaper 1 (from this, similarly to the center sheet 11, it is also referred to as “top sheet”). As the side sheet 13 that can come into contact with the wearer in this way, it is preferable to use a spunbonded nonwoven fabric that has improved flexibility by including a meltblown layer such as an SMS nonwoven fabric or an SMMS nonwoven fabric. Or it is preferable to use the spunbond nonwoven fabric which improved the softness | flexibility by suppressing the fineness and the fabric weight of the fiber which make a spunbond nonwoven fabric.

The “fineness” is a parameter corresponding to the fiber diameter (thickness) and the cross-sectional area of the fiber, and is represented by the weight per predetermined length. For example, the number of grams per 9000 m [denier] for one fiber is used as the “fineness”.
Further, the “weight per unit area” is a parameter corresponding to the thickness of the sheet or the degree of lamination, and is represented by the weight per unit area. For example, the number of grams per square meter is used as the “basis weight”.

The cover sheet 14 covers the above-described absorber 10 and the sheets 11, 12, and 13 from the non-skin surface side. Here, as the cover sheet 14, three of the first cover sheet 141, the second cover sheet 142, and the third cover sheet 143 are laminated in this order from the skin surface side toward the non-skin surface side.
The first cover sheet 141 covers the absorbent body 10 from the non-skin surface side via the back sheet 12 (hereinafter also referred to as “pad cover sheet”).

  The second cover sheet 142 and the third cover sheet 143 are set to be larger in the width direction than the first cover sheet 141 in the front body 1A and the back body 1C (see FIG. 1), and in the worn state, , Placed around the belly. The third cover sheet 143 is disposed on the most non-skin surface side in the paper diaper 1 (from this, the third cover sheet 143 is also referred to as an “outer cover sheet”, and the second cover sheet 142 is an “inner cover sheet”. Also called).

  As these cover sheets 141, 142, and 143, a spunbond nonwoven fabric can be used. Furthermore, as the first cover sheet 141, it is preferable to use a highly flexible spunbond nonwoven fabric in the same manner as the side sheet 13 in order to ensure flexible fit inside the disposable diaper 1. Further, as the third cover sheet 143, it is preferable to use a highly flexible spunbonded nonwoven fabric in the same manner as the side sheet 13 in order to ensure a feeling of touch (hand).

As shown in FIG. 1, the cover sheet 14 in the front body 1 </ b> A and the cover sheet 14 in the back body 1 </ b> C are attached to each other in the width direction edge portions 14 a (so-called “side seals”). In this way, the cover sheets 14 of the front body 1A and the back body 1C are continuously provided, and the pant-type paper diaper 1 is formed.
In addition, the back sheet 12 and the cover sheet 14 described above are made of a translucent material that can be seen through on the skin side of the sheets 12 and 14.

<gather>
Next, the gathers 15 of the disposable diaper 1 will be described with reference to FIGS. 1 and 2.
Gather 15 is a sheet composite that has elasticity by sandwiching a stretchable member (stretchable member) such as rubber, polyurethane, and stretchable film in a stretched state between sheets of nonwoven fabric and the like, and fixing with hot melt or the like. Consists of This sheet composite is in a state in which fine wrinkles are approached on a sheet such as a nonwoven fabric by a force (restoring force, elastic force) that the elastic member returns from the stretched state to the original (natural length state). Here, a thread-like rubber member (hereinafter abbreviated as “thread rubber”) 20 is exemplified as the stretchable member.

  In this paper diaper 1, three types of gathers 16, 17, and 18 provided with stretchability by three types of thread rubbers 21, 22, and 23 are illustrated as gathers 15 formed of the thread rubber 20. One is a three-dimensional gather 16 (also referred to as “side gather”) in which the skin surface side edge portion of the side sheet 13 is gathered together by the first thread rubber 21. The other is the Tammy Gather 17 in which the second cover sheet 142 and the third cover sheet 143 (see FIG. 2) are gathered together by the second rubber thread 22 (a reference numeral is attached to only one place). The other is a second three-dimensional gather 18 (not shown in FIG. 1) in which the edge in the width direction is gathered by a third thread rubber 23 (not shown in FIG. 1) on the non-skin surface side of the side sheet 13. .

  The three-dimensional gather 16 is obtained by integrating the first rubber thread 21 in an extended state with respect to the sheet portions 13 a and 13 b of the side sheet 13. In the Tammy gather 17, the second rubber thread 22 is integrated with the second cover sheet 142 and the third cover sheet 143 in an extended state. Further, the second three-dimensional gather 18 is obtained by integrating the third thread rubber 23 in an extended state with respect to the portion of the side sheet 13 on the non-skin surface side.

The three-dimensional gather 16 is provided in order to prevent leakage of the excrement in the lateral direction of the excrement by enhancing the followability to the wearer at the periphery of the excretion location.
Specifically, as shown in FIG. 2, in the three-dimensional gather 16, the sheet portions 13 a and 13 b positioned at the inner edge in the width direction on the skin surface side of the side sheet 13 are folded and overlapped. The first thread rubber 21 extending in the longitudinal direction is surrounded by the sheet portions 13a and 13b.

In other words, in the side sheet 13, the inner wall sheet portion 13 a is disposed on the inner side in the width direction with respect to the first thread rubber 21, and the outer wall sheet portion 13 b is disposed on the outer side in the width direction with respect to the first thread rubber 21. That is, in a part of the side sheet 13, the two sheet portions 13a and 13b are overlapped.
By incorporating the first thread rubber 21 in the place where the sheet portions 13a and 13b of the side sheet 13 are folded and overlapped in this way, the three-dimensional gather 16 that is erected on the skin surface side and has elasticity is provided. It is formed.
1 and 2 exemplify a three-dimensional gather 16 provided with two first thread rubbers 21. However, the number of the first thread rubbers 21 in the three-dimensional gather 16 may be one, or may be three or more.

The tammy gather 17 is provided in order to enhance the followability to the wearer's buttocks and lower abdomen. More specifically, in the Tammy gather 17, a plurality of second rubber threads 22 extending in the width direction, such as warp yarns or warp yarns in a plain fabric, are formed on the second cover sheet 142 and the third cover sheet 143 (see FIG. 2). Intervened in between.
In this way, by incorporating the second rubber thread 22 between the cover sheets 142 and 143, the tammy gather 17 having stretchability around the hip and lower abdomen is formed.

The second three-dimensional gather 18 is provided in order to improve followability at the crotch 1B. Specifically, in the second three-dimensional gather 18, the third thread rubber 23 is provided on the outer edge of the side sheet 13 on the non-skin surface side in the width direction. As described above, the third thread rubber 23 is built in the edge of the side sheet 13 on the outer side in the width direction, so that the second three-dimensional gather 18 having stretchability along the crotch 1B is formed.
In addition, in addition to or in place of the above-described gathers 16, 17, and 18, leg gathers may be provided for enhancing the follow-up of the wearer's legs.

<indicator>
Further, as shown in FIG. 2, the disposable diaper 1 is provided with an indicator 19 (also referred to as “notification sign”) that indicates the presence or absence of urination (excretion).
The indicator 19 is attached to the absorbent body 10 so as to be visible (appearable) from the outside of the disposable diaper 1. The indicator 19 is a layered portion that changes color when wet. Here, an indicator 19 is interposed between the absorbent body 10 and the back sheet 12.

The indicator 19 is provided by applying a water-sensitive material to the skin side of the back sheet 12. For example, the indicator 19 is yellow or orange before it senses moisture (before it gets wet), and changes its color to blue or yellow-green after it senses moisture (after it gets wet).
Since the back sheet 12 and the cover sheet 14 have the translucency as described above, when the indicator 19 is discolored due to excretion moisture, the discolored indicator 19 can be visually recognized from the outside of the paper diaper 1, and whether or not excretion occurs from the outside. Can be recognized.

[1-2. Detailed configuration]
Next, the detailed configuration of the disposable diaper 1 will be described with reference to FIG.
<Pressing part>
First, the pressing part 40 (concave part, pressing groove) squeezed across both the longitudinal direction and the width direction will be described. Specifically, at least the absorbent body 10 will be described with a groove-shaped compressed portion 40 formed by compressing a region intersecting both the longitudinal direction and the width direction.
The pressing part 40 is extended in order to improve the fitting property of the paper diaper 1 to a wearer.

  The pressing part 40 is provided by pressing the absorber 10 and the center sheet 11 (see FIGS. 1 and 2) in the thickness direction (stacking direction). Specifically, the laminated absorbent body 10 and the center sheet 11 are pressed (compressed) from the skin surface side with a convex shape having a predetermined shape (pattern), so that the absorbent body 10 or the center sheet 11 is contained in the pressed portion. Air is squeezed, and the squeezed portion 40 in which the center sheet 11 is engaged with and fixed to the absorber 10 is formed.

That is, the pressing part 40 is a recessed part provided in the thickness direction. This pressing part 40 is extended in linear form (namely, groove shape) so that it may cross | intersect with respect to both the longitudinal direction and the width direction. In addition, the pressing part 40 is provided except the edge (end part area | region) of the width direction among the absorbers 10. As shown in FIG.
Here, the compressed portion 40 has a plurality of first inclined portions 41 (symbols are attached to only one portion) that intersect with each other in the width direction (for example, the right side) and the other in the width direction. A plurality of second inclined portions 42 (symbols are attached to only one portion) that are inclined (for example, to the left) and intersect are provided. That is, these inclined portions 41 and 42 (squeezed lines) form a lattice shape (grid pattern) in plan view.

According to the pressing part 40 mentioned above, the absorber 10 or the center sheet 11 and the paper diaper 1 become easy to bend in the extension location of the pressing part 40, and the fit property of the paper diaper 1 with respect to a wearer is ensured.
However, if only the squeezing part 40 is provided in the paper diaper 1 as a configuration for ensuring fit, it is easy to bend in the direction where the squeezing part 40 is a fold, but it is difficult to bend in other directions. Wearer fit may be reduced.

<Following part>
Therefore, the paper diaper 1 of the present embodiment is provided with a follow-up part 50 (slit part) that extends across the pressing part 40 in order to further improve the fit to the wearer.
The follower 50 is provided for fitting the disposable diaper 1 to the wearer, and has a configuration that is particularly suitable for applications that improve fit. For this reason, the follower 50 is disposed at a predetermined location where bending in the mounted state is assumed.
The follower 50 includes at least a portion (region) having lower rigidity than other regions in the absorbent body 10. Therefore, the follower 50 includes a low rigidity portion.

A part of the follower 50 described here penetrates the absorber 10 in the thickness direction, including the intersections (intersection positions, intersections) between the inclined portions 41 and 42 described above. In addition, a part of the pressing part 40 is symmetrical with respect to at least a part of the follower part 50. However, the location where the follower 50 is disposed may not include the intersection between the inclined portions 41 and 42.
The follower 50 includes a first follower 51 along the width direction (in FIG. 3, only the left side is labeled), and a second follower 52 along the longitudinal direction (in FIG. 3, only on the front body 1A side). Are attached).

The first follower 51 (notch) is disposed at a position (longitudinal position) where it is assumed that the first follower 51 (notch) is bent at a fold along the width direction in the mounted state.
Here, three types of first followers 51 are provided. Specifically, each of the center of the absorbent body 10 in the longitudinal direction, the front body 1A side (one end side) from the center in the longitudinal direction, and the back body 1C side (the other end side) from the center in the longitudinal direction. A first follower 51 is provided.

However, the first follower 51 is not limited to being arranged at three places as described above, and may be arranged at one place, two places, or four places or more in the longitudinal direction.
These first follow-up parts 51 are provided in the crotch part 1B of the disposable diaper 1 in a state in which the end in the width direction of the absorbent body 10 is cut away. In addition, the three-dimensional gather 16 (refer FIG. 1) mentioned above is provided in the width direction side rather than the 1st tracking part 51. FIG.

  The second follower 52 is disposed at a position (width direction position) where it is assumed that the second follower 52 is bent at a fold along the longitudinal direction in the mounted state. FIG. 3 illustrates three second followers 52 arranged in the width direction in each of the front body 1A and the back body 1C. However, in each of the front body 1A and the back body 1C, one, two, or four or more second followers 52 may be provided in parallel.

Furthermore, the second follower 52 is provided with a notch 521 in which the longitudinal end of the absorber 10 is cut out and a pore 522 in a state in which the absorber 10 is cut out. In other words, the notch 521 and the pore 522 are arranged in the longitudinal direction, and the notch 521 and the pore 522 are discontinuously provided.
The absorbent body 10 provided with the follower 50 as described above can be formed by laminating a pulp or a superabsorbent resin on a female mold having a portion projecting in a shape corresponding to the follower 50. . Alternatively, the follower 50 can be provided by cutting off a part of the absorber 10.

[2. Action and effect]
Since the disposable diaper 1 of the present embodiment is configured as described above, the following actions and effects can be obtained.
Hereinafter, the operation and effect related to the pressing unit 40 will be described, and then the operation and effect related to the follower unit 50 will be described.

[2-1. Pressing section]
(1) In the extension part of the pressing part 40, the absorber 10 or the center sheet | seat 11, and the paper diaper 1 become easy to bend, and can improve the fitting property of the paper diaper 1 with respect to a wearer.
In addition, the absorbent body 10 and the center sheet 11 in which the groove-like compressed portion 40 is formed can be made non-contact with the skin surface of the wearer, and the air permeability in the wearing state is improved, and the stuffiness inside the disposable diaper 1 is prevented. Can be suppressed.

  Furthermore, the liquid excreted by capillary action, for example, can be diffused along the squeezed part 40 by the squeezed part 40 extending across both the longitudinal direction and the width direction. Therefore, the diffusibility of the liquid excreted in both the longitudinal direction and the width direction can be improved, and the water absorption points of the absorbent body 10 can be dispersed. Therefore, the water absorption of the absorber 10 can be ensured.

(2) According to the inclined parts 41 and 42 which incline in mutually different directions in the pressing part 40, since the pressing part 40 follows two directions, the paper diaper 1 becomes easy to bend | fold with the fold extending in two directions, and with respect to a wearer. The fit can be further enhanced.
Moreover, since the pressing part 40 follows two directions by the inclined parts 41 and 42, the air permeability in a mounting state is further improved by ventilating the paper diaper 1 in two directions, and the steam inside the paper diaper 1 is reliably suppressed. it can.
Furthermore, since the pressing part 40 follows two directions, the diffusibility of the excreted liquid can further be improved and the water absorption of the absorber 10 can be increased. That is, the excreted liquid can be efficiently diffused by the inclined portions 41 and 42 having a lattice shape in plan view, and the water absorption efficiency of the absorber 10 can be improved.

  (3) In addition, since the pressing part 40 is provided except the edge (end part area | region) of the width direction among the absorbers 10, it is assumed that the excreted liquid spread | diffused to the width direction outer side along the pressing part 40. In addition, excreted water is absorbed by the absorber 10 at the diffusion destination. Therefore, leakage of the excreted liquid to the outer side in the width direction can be reliably suppressed.

[2-2. Follower]
Next, actions and effects of the follower 50 will be described.
(1) According to the follow-up part 50 that extends across the pressing part 40, the paper diaper 1 is easily bent at places other than the pressing part 40, and the fit of the paper diaper 1 to the wearer can be further enhanced.
Therefore, the comfort of the wearer wearing the paper diaper 1 can be improved.

  (2) Further, according to the follower 50, since at least the absorber 10 includes the low-rigidity portion having lower rigidity than other regions, the bending at the follower 50 can be structurally promoted. Therefore, the fit property of the paper diaper 1 can be improved and a wearer's comfort can be improved.

  (3) Since this follow-up part 50 is disposed at a predetermined location where bending in the mounted state is assumed, the paper diaper 1 is easily bent at the predetermined location. In other words, it is possible to appropriately improve the fit by disposing the follower 50 at a place where the bending force acts on the disposable diaper 1 in the mounted state.

(4) According to the follow-up part 50 arranged on the front body 1A side with respect to the center in the longitudinal direction, the fit of the disposable diaper 1 with respect to the wearer's stomach can be reliably increased. For example, in the case of the follower 50 arranged along the longitudinal direction in the front body 1A (that is, the second follower 52 of the front body 1A), the absorber 10 is easily bent by the follower 50. This is because the absorber 10 can be deformed to draw a curve along the surrounding curved surface.
Moreover, according to the follower part 50 arrange | positioned in the back body 1C side rather than the center in a longitudinal direction, the fitting property of the paper diaper 1 with respect to a wearer's buttocks and a waist circumference can be improved reliably. For example, in the case of the follower 50 arranged along the longitudinal direction in the back body 1C (that is, the second follower 52 of the back body 1C), the absorbent body 10 is easily bent by the follower 50. This is because the absorber 10 can be deformed so as to draw a curve along the curved surface around the waist.
Furthermore, according to the follow-up part 50 arranged at the center in the longitudinal direction, it is possible to improve the fit of the wearer to the crotch. For example, in the case of the follower 50 (that is, the first follower 51) arranged along the width direction in the crotch part 1B, the absorber 10 is easily bent by the follower 50, so that the rear body 1A is rearward. This is because the absorbent body 10 can be deformed so as to draw a curve along the curved surface of the center line of the wearer's body over the body 1C.

  (5) Since the absorber 10 is penetrated in the thickness direction in the follower 50 of the present embodiment, the absorber 10 is not bent at the follower 50. Therefore, the fitting property of the paper diaper 1 with respect to a wearer can be improved reliably.

(6) For example, according to the first following part 51 which notches the width direction edge part of the absorber 10, the force which deform | transforms so that the absorber 10 of the crotch part 1B may be twisted by a wearer's attitude | position or the operation | movement of a leg acts. When it does, the absorber 10 can be deformed according to this deformation force. Moreover, the absorber 10 can be smoothly changed in the area | region ranging from a wearer's crotch to a buttocks. Therefore, the fitting property of the paper diaper 1 with respect to a wearer's crotch can be improved reliably.
Moreover, according to the notch part 521 which notches the longitudinal direction edge part of the absorber 10 among the 2nd tracking parts 52, the paper diaper 1 can be smoothly deformed following the shape of a wearer's waist | hip | lumbar or abdominal circumference. . Therefore, the fitting property of the paper diaper 1 with respect to a wearer's belly and waist circumference can be improved reliably.

(7) Furthermore, according to the pore portion 522 that cuts out the absorbent body 10 in the second follow-up section 52, it is possible to improve the bendability of a portion that is easily bent but is difficult to bend in the absorbent body 10. Also from this point, the fit of the disposable diaper 1 with respect to the wearer's belly and waist can be reliably improved.
In addition, since the notch portion 521 and the pore portion 522 are discontinuously provided, it is possible to suppress twisting of the absorbent body 10 and contribute to suppression of breakage (damage) of the absorbent body in the manufacturing process. To do.

(8) By the way, the crossing part of the pressing part 40 tends to be hard even in the pressing part 40. On the other hand, the follower 50 is provided at the intersection of the pressing unit 40. Specifically, at the intersection of the first inclined portion 41 and the second inclined portion 42, the notch portion 521 and the pore portion 522 at the center in the width direction of the second follower portion 52 in the front body 1 </ b> A and the back body 1 </ b> C. Is arranged, and the first follower 51 is arranged in the crotch 1B. Therefore, hardening in the crossing location of the pressing part 40 is suppressed, and it contributes to the improvement of the fit with respect to a wearer.
In addition, since the pressing part 40 has a symmetrical shape with respect to the follower part 50, the follower part 50 can be deformed by drawing a curve with good balance along the curve of the wearer's body.

[II. Second embodiment]
Next, a second embodiment of the disposable diaper will be described.
In the paper diaper of the present embodiment, a follower (slit part) is arranged at a location different from the follower 50 described above. The configuration is the same as that of the first embodiment except for the points described here. About these structures, the same code | symbol is attached | subjected and detailed description is abbreviate | omitted.

[1. Constitution]
First, with reference to FIG. 4, the structure of the tracking part 50 'of this embodiment is described.
Like the follower 50 described above, the follower 50 'is provided for fitting to the wearer, and has a configuration that is particularly suitable for applications that improve fit. This follower 50 'extends across the squeezed portion 40' at a predetermined location where bending in the mounted state is assumed. The follower 50 'is provided with a first follower 51' (pore) along the width direction and a second follower 52 '(pore) along the longitudinal direction.

Unlike the first follower 51 described above, the first follower 51 ′ is provided in a state where the absorber 10 ′ is cut out.
The first follower 51 'is disposed at the center in the width direction at the crotch 1B' of the disposable diaper 1 '. Here, the longitudinal center of the absorbent body 10 ', the front body 1A' side (one end side) from the longitudinal center, and the back body 1C 'side (the other end side) from the longitudinal center. A first follower 51 'is provided for each. However, the first follower 51 ′ is not limited to being arranged at three places in the longitudinal direction as described above, but may be arranged at one place, two places, or four or more places in the longitudinal direction.

The second follower 52 ′ is not provided with a portion corresponding to the notch 521 of the second follower 52 described above, and is provided in a state where the absorber 10 ′ is cut out.
The second follower 52 'is provided on each of the front body 1A' and the back body 1C 'of the paper diaper 1'. FIG. 4 illustrates three second followers 52 ′ arranged in the width direction on each of the front body 1 </ b> A ′ and the back body 1 </ b> C ′. However, in each of the front body 1A ′ and the back body 1C ′, one, two, or four or more second followers 52 ′ may be arranged in parallel.
Unlike the second follower 52 described above, the second follower 52 ′ is provided in a linear shape that is continuous in the longitudinal direction.

[2. Action and effect]
Since the disposable diaper 1 ′ of the present embodiment is configured as described above, the following operations and effects can be obtained.
Since the absorber 10 'is cut out in the follower 50' of the present embodiment, even if the excreted liquid diffuses along the follower 50 'and spreads outward in the width direction, the absorber 10' as the diffusion destination thereof. The absorbed water is absorbed. Therefore, leakage of the excreted liquid to the outer side in the width direction can be reliably suppressed.

Furthermore, according to the first follower 51 'disposed in the crotch part 1B' of the disposable diaper 1 ', the absorber 10' can be smoothly deformed in a region extending from the wearer's crotch to the buttocks. Further, according to the second follower 52 'disposed on the front body 1A' and the back body 1C 'of the paper diaper 1', the paper diaper 1 'is smoothly deformed following the shape of the waist and abdomen of the wearer. be able to. In this way, the fit of the disposable diaper 1 'with respect to the wearer's crotch, abdomen and waist can be reliably improved.
In addition, the same operations and effects as those of the first embodiment can be obtained except for the operations and effects due to the arrangement of the follower 50 described above in the first embodiment.

[III. Third embodiment]
Next, a third embodiment of the disposable diaper will be described.
In the paper diaper of the present embodiment, the following configurations A to C are specified.
-Configuration A: Two types of followers are arranged to intersect each other in the absorber-Configuration B: The content of the superabsorbent resin is set for each region of the absorber-Configuration C: Center sheet (sheet) It is a multilayer structure. Except for the points described in this embodiment, the configuration is the same as that of the first embodiment or the second embodiment described above. About these structures, the same code | symbol is attached | subjected and detailed description is abbreviate | omitted.

[1. Constitution]
First, with reference to FIG. 5, the above-described configurations A and B will be described with respect to the absorbent body 10 ″ incorporated in the disposable diaper 1 ″ of the present embodiment.
<Configuration A>
The absorber 10 ″ of the present embodiment is provided with a follower 50 ″ in which a first follower 51 ″ along the width direction and a second follower 52 ″ along the longitudinal direction intersect in plan view.

<Configuration B>
The follower 50 ″ described above is disposed in a region excluding the end (edge) of the absorber 10 ″. For example, the first follower 51 ″ is extended in a region excluding the width direction end region R _W (outer region) of the absorber 10 ″. Further, a second follower 51 ″ is extended in a region excluding a longitudinal end region (not shown) of the absorbent body 10 ″. In other words, "the first follower 51 'absorbent body 10 widthwise end region R _W in the width direction end portion side with respect to the present, in the longitudinal end side of the second follower 52' Has a longitudinal end region (not shown).

Here, the content degree of at least a superabsorbent polymer in the width direction end region R _W where for the first follower 51 'located in the width direction end portion side is set higher than other regions.
For example, the density of the superabsorbent polymer (containing degree) is set higher than other areas towards the widthwise end regions R _W. Here, "density", the absorbent body 10 "is the mass of superabsorbent polymer per unit volume in. Alternatively, the absorbent body 10" high in each of the widthwise end regions R _W and other areas in after having set equal the density of the water-absorbent resin, the amount of the widthwise end regions R _W made thicker than other regions, the superabsorbent polymer contained in the widthwise end regions R _W (containing degree) May be set larger (larger) than the amount (content degree) of the superabsorbent resin contained in other regions. Speaking in Fuen, the content of the super absorbent polymer per unit area of the absorbent body 10 "in plan view is set to be larger than the other areas towards the widthwise end regions R _W.

The width direction end region R _W the content degree is set high superabsorbent polymers not only a region located widthwise end portion side of the first tracking section 51 ", the area and the width direction It may include other regions with overlapping positions and different longitudinal positions.
Similarly, the content of the superabsorbent resin in the longitudinal direction end region located at least on the longitudinal direction end portion side with respect to the second follower portion 52 ″ may be set higher than other regions.

<Configuration C>
Next, with reference to FIG. 6, the configuration C relating to the center sheet 11 ″ will be described.
The center sheet 11 ″ of this embodiment is a multilayer in which an upper layer (first layer) 11u ″ arranged on the skin surface side and a lower layer (second layer) 11d ″ arranged on the non-skin surface side are laminated at least. Note that at least one of the upper layer 11u ″ and the lower layer 11d ″ may further have a multilayer structure. In this case, the center sheet 11 ″ has a multilayer structure of three or more layers.

In the center sheet 11 ″, an upper layer 11u ″ and a lower layer 11d ″ are partially coupled. The coupling portion constitutes an auxiliary follower 110 ″ that extends across the pressing portion 40 in a plan view. .
The auxiliary follower 110 ″ is provided for fitting the disposable diaper 1 ″ to the wearer, like the followers 50 and 50 ′ described above. As a joining method of the upper layer 11u ″ and the lower layer 11d ″ in the auxiliary follower 110 ″, various known joining methods such as a known adhesion method using a hot-melt adhesive or embossing may be used to form the upper layer 11u ″ and the lower layer 11d ″. And are partially combined.

[2. Action and effect]
Since the disposable diaper 1 ″ of the present embodiment is configured as described above, the following operations and effects can be obtained.
<Configuration A>
In the follow-up part 50 ″ of the present embodiment, the first follow-up part 51 ″ and the second follow-up part 52 ″ are arranged so as to intersect with each other in plan view. From this, it is excreted by the wearer wearing the disposable diaper 1 ″. The liquid can be diffused both in the width direction and in the longitudinal direction not only by the pressing part 40 but also by the follower part 50 ″. Further, since the two follower parts 51 ″ and 52 ″ are provided in different orientations, The paper diaper 1 ″ is more easily bent at a place other than the pressing portion 40, and the fit of the paper diaper 1 ″ to the wearer can be reliably increased.

<Configuration B>
Further, containing the degree of super absorbent polymer in the width direction end region R _W positioned in the widthwise direction end portion side of the first follower 51 ', if. Say is set higher than other regions, "in paper diaper 1" absorber 10 in the width direction end region R _W corresponding to the previous region diffused in the width direction along the liquid first follower 51 'excreted from the wearer to attach the high The content of the water absorbent resin is ensured. Therefore, the liquid diffused in the width direction can be surely absorbed by the highly water-absorbent resin of the absorbent body 10 ″. This is effective for preventing so-called side leakage (liquid leakage in the width direction).

  Similarly, if the content of the highly water-absorbent resin in the longitudinal end region (not shown) located on the longitudinal end side with respect to the second follower 52 ″ is set high, it diffuses in the longitudinal direction. The liquid can be reliably absorbed by the superabsorbent resin of the absorbent body 10 ″. This is effective for preventing so-called abdominal leak and back leak (leakage of liquid in the longitudinal direction).

Incidentally, in the widthwise end regions R _W the content degree is set high superabsorbent polymers, longitudinal with region and the width direction position located widthwise end portion side of the first follower 51 'overlap In the case where other regions having different directional positions are also included, the manufacturing process for adjusting the content of the superabsorbent resin for each region of the absorbent body 10 ″ can be simplified. Therefore, it contributes to reducing the manufacturing cost of the disposable diaper 1 ″.

<Configuration C>
In addition, the center sheet 11 ″ is provided with an auxiliary follower 110 ″ in which a coupling portion in which the upper layer 11u ″ and the lower layer 11d ″ are partially coupled extends in a plan view so as to intersect the pressing portion 40. From this, not only the follower 50 ″ of the absorbent body 10 ″ but also the auxiliary follower 110 ″ of the center sheet 11 ″ can assist the folding of the paper diaper 1 ″ so that the wearer can wear the disposable diaper 1 ″. Contributes to improved fit.

[IV. Others]
Finally, other modifications will be described.
For example, the pressing part should just be provided at least in the absorber, and does not need to be provided in the center sheet. In this case, before a center sheet is laminated | stacked, a part of absorber is squeezed from the skin surface side, and a pressing part is shape | molded. Or a pressing part may be shape | molded by the non-skin surface side of an absorber. In this case, at least the absorber is squeezed from the non-skin surface side, and the squeezed part is formed.

  Moreover, as a planar view shape of a pressing part, not only a grid | lattice shape but various shapes are employable. As a specific example, at least one of the first inclined portion or the second inclined portion may be singular or at least one of them may be omitted. Furthermore, the first inclined part or the second inclined part may be a curved line, a triangular wave, or a rectangular wave, in addition to a straight line. As described above, the compressed portions having other planar shapes contribute to improving the wearer's comfort by ensuring fit, breathability and water absorption.

The follower is not limited to the form penetrating the absorber, and may have a groove-like groove-like portion in which the absorber is recessed, and the basis weight (basis weight) can be suppressed more than the area other than the follower. It may have a low basis weight area (low basis weight area). This low-weight area includes a region where the absorber is partially recessed, and a flat region where the absorber is not recessed (that is, a region having a lower density per unit volume than other regions). It is. As described above, a follower having low rigidity in a part (one region) of the absorber may be used by various configurations.
Further, the follower may be intermittently provided with at least any one of sites that form a site such as a site that penetrates the absorber, a groove-shaped site, and a site of a low-weight area. These parts may be mixed and provided. For example, a groove-shaped part can be applied to one of the first follower and the second follower, and a low weight area can be applied to either one. Alternatively, one of the first follower and the second follower is applied with a slit that is thinned as exemplified in the first to third embodiments, and the other is a low weight area. Alternatively, a groove-shaped member may be applied.

In addition, the extension direction of the follower may be a direction that intersects at least the extension direction of the pressing part. The follower is arbitrarily set with a thickness dimension (thickness in plan view) in a direction orthogonal to the extending direction. For example, the thickness dimension of the first follower portion and the thickness dimension of the second follower portion may be the same or different from each other.
As described above, the follower having the groove-shaped portion and the low weight area can improve the comfort of the wearer by improving the fit of the disposable diaper, as in the case of the follower 50, 50 'described above.

Or the upper layer absorber and the lower layer absorber may be laminated | stacked, and the absorber may be comprised. In this case, the follower is provided in at least one of the upper layer absorber and the lower layer absorber. For example, if the follower is not formed on the upper absorbent body facing the wearer's skin, but only the lower absorbent on the non-skin surface side, the step formed on the absorber by the follower Can prevent the wearer from feeling uncomfortable. Moreover, when forming a tracking part in both an upper layer absorber and a lower layer absorber, arrange | position the tracking part of an upper layer absorber and the tracking part of a lower layer absorber separately (for example, arrange | position alternately by planar view). Thus, it is possible to cope with various bent states of the absorber. In addition, the absorber can be prevented from being deformed or broken (torn).
In addition, a pressing part may shape | mold after lapping an upper layer absorber and a lower layer absorber, and may shape | mold at least any one of an upper layer absorber and a lower layer absorber.

  Further, an auxiliary follower along a direction different from the extending direction of the follower in plan view may be connected to the follower. The auxiliary follower may extend in the extending direction of the pressing part, or may extend so as to intersect with the extending direction of the pressing part. By adding such an auxiliary follow-up part, it is possible to further improve the fit of the disposable diaper and improve the wearer's comfortability.

1 disposable diaper (absorbent article)
1A Front body 1B Inseam 1C Rear body 10 Absorber 11 Center sheet (sheet)
12 Back sheet 13 Side sheet 14 Cover sheet 15 Gather 16 Solid gather 17 Tammy gather 18 Second solid gather 19 Indicator 20 Rubber thread (elastic member)
21 1st thread rubber 22 2nd thread rubber 23 3rd thread rubber 30 Indicator 40 Squeeze part (concave part)
41 First inclined portion 42 Second inclined portion 50 Following portion (low rigidity portion, slit portion)
51 First follower (notch)
52 Second follower 521 Notch 522 Fine pore 50 'Follower (slit part)
51 'first follower (pore)
52 'second follower (pore)
C center line

The absorbent article disclosed herein includes a mat-like absorbent body having water absorption. The absorbent body has a groove-like compressed portion that is compressed so as to cross both the longitudinal direction and the width direction in a plan view, and a fit for a wearer that extends across the compressed portion in a plan view . and several of the follow-up portion is provided. The follower has a first follower along the width direction and a second follower along the longitudinal direction, and the first follower and the second follower are provided so as to intersect in plan view. .

Claims (17)

In an absorbent article provided with a mat-like absorber having water absorption,
A groove-like squeezed portion provided in the absorbent body, and squeezed to cross both the longitudinal direction and the width direction in plan view;
An absorptive article provided with one or a plurality of follow-up parts for fitting to a wearer which is provided in the absorber and extends across the pressing part in plan view. The absorptive article according to claim 1 in which said follower has a low rigidity part whose rigidity is lower than other areas. The absorbent article according to claim 1, wherein the follower is disposed at a predetermined location that is assumed to be bent when the follower is attached to the wearer. The absorptive article given in any 1 paragraph of Claims 1-3 in which said follower part is arranged in the one end side rather than the center of said longitudinal direction. The absorbent article according to claim 4, wherein the follower is disposed on the other end side from the center in the longitudinal direction. The absorbent article according to any one of claims 1 to 5, wherein the follower is disposed at a center in the longitudinal direction. The absorptive article given in any 1 paragraph of Claims 1-6 in which said follow-up part has a groove-like groove-like part. The absorptive article given in any 1 paragraph of Claims 1-7 in which said follower has a slit part which penetrates said absorber in the thickness direction. The absorbent article according to any one of claims 1 to 8, wherein the follower has a low basis weight area in which a basis weight is suppressed as compared with a region other than the follower. The said pressing part has the 1st inclination part which inclines and cross | intersects one side with respect to the said longitudinal direction and the said width direction by planar view, and the 2nd inclination part which inclines and crosses the other. 10. The absorbent article described in any one of 9 above. The absorbent article according to claim 10, wherein a plurality of at least one of the first inclined portion and the second inclined portion is provided. The one or more follower portions are provided so as to include a position where the first inclined portion and the second inclined portion intersect in plan view.
The absorbent article according to claim 10 or 11. The said absorber is comprised by laminating | stacking an upper layer absorber and a lower layer absorber, The said tracking part is provided in at least any one of the said upper layer absorber and the said lower layer absorber. The absorbent article as described in any one of Claims. The absorbent article according to any one of claims 1 to 13, wherein the follower has a first follower along the width direction and a second follower along the longitudinal direction. The absorptive article according to claim 14 provided with said 1st following part and said 2nd following part intersecting by plane view. The said absorber was described in any one of Claims 1-15 in which the outer region located in the outer side of the said width direction with respect to the said follower part has a larger content rate of an absorbent resin than another area | region. Absorbent article. Laminated to the absorber, comprising a sheet having at least a first layer and a second layer,
The said sheet | seat has the auxiliary | assistant follow-up part for fitting to a wearer where the location which couple | bonded said 1st layer and said 2nd layer partially cross | intersects the said pressing part by planar view, and extends. The absorbent article as described in any one of 1-16.

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